Career
He plays at centre back for AaB in the Danish Superliga. At the start of the 2007-2008 season, with Rasmus Marvits having left the club, Petersen became a regular part of the starting 11 in the Air Corps Horsens" first team After Petersen joined the Danish national league team"s 2009 King"s Cup campaign, twice playing 90 minutes, Peter Bonde, the assistant manager of Denmark, praised him, and told he had A-national team potential.
On January 7, 2016, it was announced, that Petersen had to find a new club when his contract with AaB expires at the end of the season.
Few days later on January 13, it was confirmed that Petersen had signed with OB on a free transfer, and he will start in his new club after the 2015-2016 Danish Superliga season. Petersen will be reunited with head coach Kent Nielsen, with who he has worked together with in Air Corps Horsens and AaB. Club AaB.